Reflecting cover and electric heater

Abstract

The utility model relates to a reflecting cover which comprises a heating element and a reflecting cover body fixedly installed on the periphery of the heating element, the reflecting cover body comprises a first cambered surface, a second cambered surface is arranged at the center of the first cambered surface, the concave curved surface of the first cambered surface faces the heating element, and the convex curved surface of the second cambered surface faces the heating element. And the center of the second cambered surface is aligned with the center of the heating element. The problems that when a reflecting cover of an existing electric heater reflects heat source radiation emitted by a heating element, the heat source radiation in the middle of the heating element can be blocked by the heating element, heat source waste is caused, and then the heating effect of the electric heater is affected are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric heaters, and in particular to a reflecting cover and an electric heater. BACKGROUND

[0002] In the existing electric heater technology, the reflecting cover as one of the key components mainly functions to reflect and concentrate the heat radiation generated by the heat generating elements such as heat pipes or heat plates, so as to improve the heat transfer efficiency and the heating uniformity. However, in actual application, a common problem is that the reflecting cover designed with a simple plane or arc structure has a blind area when reflecting the heat source, especially the area directly opposite to the heat generating element. When the reflecting cover reflects the heat source radiation of the heat generating element, the heat source radiation in the middle of the heat generating element is blocked by the heat generating element, resulting in waste of the heat source and affecting the heating efficiency of the surrounding environment and the user experience. SUMMARY

[0003] The present application provides a reflecting cover and an electric heater to solve the problem that the reflecting cover of the existing electric heater blocks the heat source radiation in the middle of the heat generating element when reflecting the heat source radiation emitted by the heat generating element, thereby causing waste of the heat source and affecting the heating effect of the electric heater.

[0004] In a first aspect, the present application provides a reflecting cover, comprising a heat generating element and a reflecting cover body fixedly installed on the outer periphery of the heat generating element, wherein the reflecting cover body comprises a first arc surface, a second arc surface is arranged at the center of the first arc surface, the concave surface of the first arc surface faces the heat generating element, the convex surface of the second arc surface faces the heat generating element, and the center of the second arc surface is aligned with the center of the heat generating element.

[0005] In a second aspect, the present application provides an electric heater, comprising the above-mentioned reflecting cover, a shell and a control device, wherein the reflecting cover is installed on the shell, the control device is installed in the shell, and the control device is connected with the heat plate and used for controlling the heat plate.

[0006] The above-mentioned technical solution provided by the embodiments of the present application has the following advantages compared with the prior art:

[0007] The reflector provided by the embodiment of the present application comprises a heating element and a reflector body fixedly installed on the periphery of the heating element, the reflector body comprises a first arc surface and a second arc surface, the second arc surface is located at the center of the first arc surface, the concave surface of the first arc surface faces the heating element, the convex surface of the second arc surface faces the heating element, by the principle of light reflection, the first arc surface can reflect the heat source emitted by the periphery of the heating element to the outside of the reflector body, the second arc surface is installed with the convex surface facing the heating element, the center of the second arc surface is aligned with the center of the heating element, the part of the second arc surface facing the heating element is in an arc surface, when the heating element emits heat, the infrared rays emitted by the middle part of the heating element are perpendicular to the heating element, the infrared rays are reflected by the convex surface of the second arc surface, by the relationship between the incident light, the reflected light and the normal line and the reflecting surface, the infrared rays are reflected to the periphery of the heating element through the second arc surface, so that the heating element does not block the light, and the heating effect of the electric heater is not affected. BRIEF DESCRIPTION OF DRAWINGS

[0008] The drawings incorporated into the specification and forming a part of the specification, show embodiments consistent with the present application, and together with the specification serve to explain the principles of the present application.

[0009] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below, and obviously, other drawings can also be obtained by those skilled in the art without creative labor under the premise of not paying the creative labor.

[0010] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings, and the exemplarily illustrations do not constitute a limitation on the embodiments, the elements with the same reference numerals in the drawings represent the similar elements, and the drawings do not constitute a proportional limitation unless specially stated.

[0011] Figure 1 A reflector and a whole structure of the reflector of an electric heater provided by the embodiment of the present application;

[0012] Figure 2 A front view and a sectional view of the whole structure of the reflector of the electric heater provided by the embodiment of the present application;

[0013] Figure 3 A side view and a sectional view of the whole structure of the reflector of the electric heater provided by the embodiment of the present application;

[0014] Figure 4 A structure of a front mesh cover and a heating element of the reflector of the electric heater provided by the embodiment of the present application;

[0015] Figure 5 A front mesh cover and a fixed ring structure diagram of a reflector and an electric heater of the reflector are provided for the embodiment of the present application.

[0016] Figure 6 A front mesh cover structure diagram of a reflector and an electric heater of the reflector is provided for the embodiment of the present application.

[0017] Figure 7 A fixed ring structure diagram of a reflector and an electric heater of the reflector is provided for the embodiment of the present application.

[0018] Figure 8 An electric heater structure diagram of a reflector and an electric heater of the reflector is provided for the embodiment of the present application.

[0019] Explanation of reference signs:

[0020] First arc surface 101, second arc surface 102, heating element 103, fixed rod 104, front mesh cover 201, mounting ring 2011, protective cover 202, ventilation hole 2021, fixed ring 203, movable ring 204, heat insulation cover 205, heat insulation disc 206, shell 301. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0022] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplifying the present application, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to numbers and / or letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0023] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0024] In order to solve the technical problem that when the reflector of an existing electric heater reflects the heat source radiation emitted by the heating element, the heat source radiation in the middle of the heating element is blocked by the heating element, resulting in heat waste and affecting the heating effect of the electric heater, this application provides a reflector and an electric heater that can reflect the heat source in the middle of the heating element out of the electric heater so as to fully heat the surrounding environment.

[0025] Figure 1 - Figure 7 A reflector provided in this application embodiment includes a heating element 103 and a reflector body fixed to the outer periphery of the heating element 103. The reflector body includes a first arc surface 101 and a second arc surface 102 at the center of the first arc surface 101. The first arc surface 101 and the second arc surface 102 can be integrally formed or fixedly installed by a fixed connection. The concave surface of the first arc surface 101 is installed facing the heating element 103, and the convex surface of the second arc surface 102 is installed facing the heating element 103. The center of the second arc surface 102 is aligned with the center of the heating element 103 to ensure that the second arc surface 102 can reflect the infrared rays emitted from the middle of the heating element 103 without being blocked by the heating element 103.

[0026] In the embodiment of the present application, the first arc surface 101 and the second arc surface 102 are both parabolic structures, the relationship between the focal point and the directrix of the first arc surface 101 and the second arc surface 102 is Y2=2PX, and the distance relationship between the focal point and the directrix is P=2F, that is, the relationship between the focal point and the directrix is Y2=4FX. In the embodiment of the present application, the value of the focal point F can be 60, thereby determining the curvature of the first arc surface 101 and the second arc surface 102 and the distance relationship between the first arc surface 101 and the second arc surface 102 and the heat generating element 103.

[0027] In order to facilitate the disassembly, installation, maintenance and replacement of the heat generating element 103 and the reflector body, a fixed rod 104 is arranged, one end of the fixed rod 104 is fixedly installed on the heat generating element 103, a fixed ring 203 is arranged on the outer periphery of the heat generating element 103, the other end of the fixed rod 104 is fixedly installed on the fixed ring 203, the relative fixation between the heat generating element 103 and the fixed ring 203 is realized through the fixed rod 104, and the reflector body is fixedly installed on the fixed ring 203, so that the reflector body is located on the outer periphery of the heat generating element 103, and at the same time, the heat generating element 103 and the reflector body can have a certain distance through the fixed rod 104 and the fixed ring 203, so that the heat source emitted by the heat generating element 103 can be better reflected out of the reflector.

[0028] In order to prevent impurities from falling into the reflector or the user from touching the heat generating element 103 and the reflector body, a front mesh cover 201 is fixedly installed on the fixed ring 203, and the front mesh cover 201 is located on the top of the heat generating element 103, that is, the height of the front mesh cover 201 fixed on the fixed ring 203 is higher than the heat generating element 103, so as to ensure that the heat generating element 103 can be surrounded between the front mesh cover 201 and the reflector body. In order to facilitate the disassembly and installation of the front mesh cover 201, a mounting ring 2011 is fixed on the edge of the front mesh cover 201, and the front mesh cover 201 is fixedly installed on the outer wall of the fixed ring 203 through the mounting ring 2011 to realize the fixation between the front mesh cover 201 and the fixed ring 203. One realizable way is that the inner diameter of the mounting ring 2011 is greater than or equal to the outer diameter of the fixed ring 203. In order to ensure the stability of the installation of the front mesh cover 201, the inner diameter of the mounting ring 2011 can be set to be consistent with the outer diameter of the fixed ring 203. When the front mesh cover 201 and the fixed ring 203 are installed, the mounting ring 2011 can be fixedly attached to the outer wall of the fixed ring 203.

[0029] Because the heating element 103 dissipates a significant amount of heat during operation, the high temperature of the front grille 201 where the heating element 103 is located may cause damage. Therefore, a heat insulation plate 206 is fixedly installed on the front grille 201 where the heating element 103 is located, and a heat insulation cover 205 is installed around the heat insulation plate 206 to prevent users from being injured by touching the heat insulation plate 206. At the same time, the installation of the heat insulation cover 205 also serves as a reminder to the user that the temperature in that area is high, and the installation of the heat insulation cover 205 also creates a certain distance between the front grille 201 and the external environment, thereby preventing direct damage to the front grille 201.

[0030] To prevent contact with the outer shell of the reflector body, a protective cover 202 is provided on the outer periphery of the reflector body, and the protective cover 202 is fixedly mounted on the fixing ring 203. In one possible embodiment, a movable ring 204 is fixedly mounted on the outer periphery of the fixing ring 203, and the protective cover 202 is fixedly mounted on the movable ring 204, so that the reflector and the protective cover 202 always maintain a distance and do not come into contact, so that the temperature of the reflector is not completely transferred to the protective cover 202, thereby avoiding injury to the user during use; and ventilation holes are provided on the protective cover 202 to allow air circulation between the reflector and the external environment, thereby cooling the reflector.

[0031] like Figure 8 As shown, in one possible implementation, the reflector can be used in an electric heater. In addition to the reflector described above, the electric heater also includes at least a housing 301 and a control device. The housing 301 is used to mount the reflector and the control device, and the control device is connected to the heating element 103. The output end of the control device is connected to the input end of the heating element 103 so as to control the working state of the heating element 103 through the control device to realize the heating of the electric heater.

[0032] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0033] Although the terms first, second, third, etc. can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example implementations.

[0034] The foregoing is considered as illustrative only of the principles of the application. Numerous modifications and changes can readily occur to those skilled in the art, which modifications and changes are intended to be within the scope of the application. Accordingly, the scope of the application is to be interpreted only as is fairly required in view of the patent principles and novel features herein shown and described.

Claims

1. A reflector characterized by, The application relates to a heat radiating cover, which comprises a heat generating element and a reflecting cover body fixedly installed on the periphery of the heat generating element, wherein the reflecting cover body comprises a first arc surface, a second arc surface is arranged at the center of the first arc surface, the concave surface of the first arc surface faces the heat generating element, the convex surface of the second arc surface faces the heat generating element, and the center of the second arc surface is aligned with the center of the heat generating element.

2. The reflector of claim 1, wherein The first arc surface and the second arc surface are both in parabolic structure.

3. The reflector of claim 1, wherein One end of a fixing rod is fixedly installed on the heat generating element, a fixing ring is arranged on the periphery of the heat generating element, the other end of the fixing rod is fixedly installed on the fixing ring, and the reflecting cover body is fixed on the fixing ring.

4. The reflector of claim 3, wherein A front mesh cover is fixedly installed on the fixing ring and located on the top of the heat generating element.

5. The reflector of claim 4, wherein An installation ring is fixed on the edge of the front mesh cover and fixedly installed on the outer wall of the fixing ring.

6. The reflector of claim 4, wherein A heat insulation disc is fixedly installed on the corresponding position of the front mesh cover and the heat generating element, and a heat insulation cover is fixedly installed on the periphery of the heat insulation disc.

7. The reflector of claim 3, wherein A protection cover is arranged on the periphery of the reflecting cover body and fixedly installed on the fixing ring.

8. The reflector of claim 7, wherein, Air holes are arranged on the protection cover.

9. The reflector of claim 7, wherein, A movable ring is fixedly installed on the periphery of the fixing ring, and the protection cover is fixedly installed on the movable ring.

10. An electric heater, characterized by comprising: The application further relates to a heat radiating cover, which comprises a heat radiating cover as claimed in any one of claims 1 to 9, a shell, and a control device, wherein the heat radiating cover is installed on the shell, the control device is installed in the shell, the control device is connected with the heat generating element and used for controlling the heat generating disc.

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